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42213122131200 = 28352129113031307
BaseRepresentation
bin10011001100100100000100…
…01001100100010100000000
312112110112110001122212202020
421212102002021210110000
521013104433231144300
6225440235100121440
711614540342552056
oct1146220211442400
9175415401585666
1042213122131200
11124a5536a49489
124899229236280
131a728ac911977
14a5d1a9ac81d6
154d30d81978a0
hex266482264500

42213122131200 has 432 divisors, whose sum is σ = 139633760534016. Its totient is φ = 11230881177600.

The previous prime is 42213122131163. The next prime is 42213122131217. The reversal of 42213122131200 is 213122131224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32297720947 + ... + 32297722253.

Almost surely, 242213122131200 is an apocalyptic number.

42213122131200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42213122131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69816880267008).

42213122131200 is an abundant number, since it is smaller than the sum of its proper divisors (97420638402816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42213122131200 is a wasteful number, since it uses less digits than its factorization.

42213122131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 42213122131200 its sum of digits (24), we get a palindrome (42213122131224).

Adding to 42213122131200 its reverse (213122131224), we get a palindrome (42426244262424).

The spelling of 42213122131200 in words is "forty-two trillion, two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred".